Answer:
B. m+7
Step-by-step explanation:
Given, x=2m+9
y=22m+15
z=23m+18
Average of x,y,z=32m+9+22m+15+23m+18=326m+42=m+7
#LetsStudy
Answer:
B. m+7
Step-by-step explanation:
Given, x=2m+9
y=22m+15
z=23m+18
Average of x,y,z=32m+9+22m+15+23m+18=326m+42=m+7
#LetsStudy